45320128 has 28 divisors (see below), whose sum is σ = 102780592. Its totient is φ = 19422720.

The previous prime is 45320123. The next prime is 45320137. The reversal of 45320128 is 82102354.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45320123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50133 + ... + 51028.

Almost surely, 2^45320128 is an apocalyptic number.

It is an amenable number.

45320128 is an abundant number, since it is smaller than the sum of its proper divisors (57460464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45320128 is a wasteful number, since it uses less digits than its factorization.

45320128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101180 (or 101170 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 45320128 is about 6732.0225786906. The cubic root of 45320128 is about 356.5307909176.

The spelling of 45320128 in words is "forty-five million, three hundred twenty thousand, one hundred twenty-eight".